ARID1B Drug Discovery Landscape & Assay Solutions

Market Intelligence for Chromatin Remodeling Targets: Comprehensive reagent solutions for SWI/SNF complex research, synthetic lethality screening, intracellular oncology target validation, and targeted protein degradation (PROTAC) development.

TarMart Solution Ecosystem & Related Targets

"Comprehensive reagent toolkit for ARID1B drug discovery. Select your modality below:"

Component / Network Product Description Product Link
Antigen ARID1B Recombinant Protein (Full Length)
HEK293 Expressed, High Purity (>95%), Sequence Verified, Theoretical MW ~225 kDa, covers ARID domain (Q8NFD5). Includes clinically reported truncation mutations (e.g., rs1251241593, rs375160616) for variant panels.
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Mutant Panel ARID1B Cancer Mutant Proteins (Truncation/LOF variants)
Endotoxin <1EU/µg, Suitable for synthetic lethality binding studies and variant selectivity assays.
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Gene Delivery ARID1B Lentivirus Particles (ORF/shRNA)
For stable cell line construction in synthetic lethality assays and rescue experiments.
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Benchmark Ab (Detection) Anti-ARID1B Recombinant Antibody
Sequence Verified, Suitable for Western Blot, IP, ChIP, and degradation assays.
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Validator ARID1B siRNA Set (3 target-specific sequences)
For knockdown verification and specificity controls.
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Synthetic Lethality Partner ARID1A
Paralog subunit; Essential for ARID1B loss-of-function synthetic lethal screens and patient stratification.
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Epigenetic Regulator EZH2
PRC2 methyltransferase; Synthetic lethal target in ARID1B-mutant cancers; validated with tazemetostat.
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Complex Member SMARCA4 (BRG1) & SMARCA2 (BRM)
ATPase subunits of SWI/SNF; Protein-protein interaction studies and alternative degradation targets.
View SMARCA4 Products

Critical Assay Requirements for ARID1B Drug Development

Critical Assay Challenge The TarMart Advantage (Technical Spec)
Large protein size & complex folding (225 kDa chromatin remodeler) HEK293 Expressed Full-Length Protein with Native Post-Translational Modifications; High Purity (>95%) by SEC-HPLC; Aggregate-free formulation.
Synthetic Lethality Screening (WT vs Cancer Mutants) Cancer-Specific Mutant Protein Panel (Sequence Verified truncations); Wild-type orthologs for selectivity testing; Endotoxin Controlled (<1EU/µg).
Ternary Complex Formation for Degraders (PROTAC) Truncated functional domains (ARID, C-terminal) expressed at >95% purity for accurate SPR and AlphaLISA assay validation.
Subfamily Homology Screening (ARID1B vs ARID1A) Homolog panel proteins (ARID1A, SMARCA2, SMARCA4) strictly verified by mass spectrometry and sequence alignment; enables counter-screening for selectivity.
Intracellular Target Access & Stable Expression High-Titer Lentivirus Premade Particles for stable transduction; Suitable for Co-IP, ChIP, and complex formation assays.
Specificity Controls & Knockdown Validation Target-specific siRNA Set included for knockdown verification; Eliminates off-target assay artifacts.

Live ARID1B R&D Tracker

Market data changes daily. Access the latest global pipeline status directly:

Global Clinical Landscape & Future Outlook

The therapeutic landscape for ARID1B is rapidly evolving from basic tumor suppressor biology toward precision synthetic lethality and targeted protein degradation. As a core subunit of the SWI/SNF (BAF) chromatin remodeling complex, ARID1B loss-of-function mutations drive oncogenesis in endometrial, bladder, and gastric cancers. In ARID1A-deficient tumors (e.g., ovarian clear cell carcinoma), cancer cells become reliant on ARID1B, creating a synthetic lethal vulnerability.

Current R&D focuses on exploiting this dependency through EZH2 inhibition (e.g., tazemetostat, which has demonstrated clinical activity in ARID1B-mutant populations) and emerging PROTAC degraders that target ARID1B for ubiquitination. The next wave of therapeutics includes highly selective protein-protein interaction (PPI) disruptors and molecular glues that spare wild-type tissues while collapsing the BAF complex in ARID1A-mutant tumors.

Major players such as Ipsen (Epizyme), Prelude Therapeutics, Foghorn Therapeutics, and Kymera are leading the charge, with preclinical biotechs exploring additional synthetic lethal combinations (e.g., PARP inhibitors, PI3K/mTOR pathway) and CRISPR-based approaches. The field is moving from broad epigenetic inhibitors to modality-specific solutions that demand high-quality reagents for target engagement, selectivity, and cellular validation.

Competitive Modality & Indication Snapshot

Modality Representative Players Key Indications Critical Assay Need (Why TarMart?)
EZH2 Inhibitor (Synthetic Lethality) Ipsen (Epizyme), Pfizer ARID1B-mutant Endometrial Cancer, Solid Tumors ARID1B Mutant vs WT Protein Panel for patient stratification assays
Targeted Protein Degraders (PROTAC/Molecular Glue) Prelude Therapeutics, Foghorn Therapeutics, Kymera ARID1A-Mutant Solid Tumors (Ovarian, Gastric) Ternary complex validation using high-purity domain proteins and lentivirus-based cell models
Small Molecule PPI Inhibitors Emerging Biotech Ovarian & Endometrial Cancer Selectivity assay (ARID1B vs ARID1A homolog proteins) for binding specificity
Gene Therapy (Coffin-Siris Syndrome) Rare Disease Consortiums Coffin-Siris Syndrome (Developmental disorder) Functional Full-length Protein for rescue assay validation
RNA-Based Therapeutics (siRNA/CRISPR) Academic & Preclinical Biotech Gastric & Bladder Cancers In vitro phenotype testing using reliable lentivirus and siRNA reagents